<template>
    <div v-if="isExternal" :style="styleExternalIcon" class="svg-external-icon svg-icon" v-on="$listeners" />
    <svg v-else :class="svgClass + ''" :icon-class="svgClass + ''" aria-hidden="true" :style="styles" v-on="$listeners">
        <use :xlink:href="iconName" />
    </svg>
</template>

<script>
import { isExternal } from '@/utils/validate';

export default {
    name: 'SvgIcon',
    props: {
        iconClass: {
            type: String,
            required: true,
            default: '',
        },
        className: {
            type: String,
            default: '',
        },
        color: {
            type: String,
            default: '#1F2D35'
        },
        size: {
            type: [String, Number],
            default: 12
        }
    },
    computed: {
        isExternal() {
            return isExternal(this.iconClass);
        },
        iconName() {
            return `#icon-${this.iconClass}`;
        },
        svgClass() {
            if (this.className) {
                return 'svg-icon ' + this.className;
            } else {
                return 'svg-icon';
            }
        },
        styleExternalIcon() {
            return {
                mask: `url(${this.iconClass}) no-repeat 50% 50%`,
                '-webkit-mask': `url(${this.iconClass}) no-repeat 50% 50%`,
            };
        },
        styles() {
            return {
                fontSize: `${this.size}px`,
                color: this.color
            }
        }
    },
};
</script>

<style scoped>
.svg-icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    fill: currentColor;
    overflow: hidden;
}

.svg-external-icon {
    background-color: currentColor;
    mask-size: cover !important;
    display: inline-block;
}
</style>
